I need some help. I decided to build a P/J bass and have started to buy parts. I have a body and nexk and I am now researching pickups and cannot find that many P/J sets for sale. Add to that, there really only seems to be just a few PU manufacturers I hear of -- EMG, DiMarzio, Bart, Armstrong, Fender, Schaller, Villex. I have a few questions: 1) Any "off brands" I should be looking at? The usual names are pretty expensive and I want to keep costs way down. 2) Who makes good P/J sets and if I cannot get a set, what criteria should I use to mix and match Ps and Js? Who has a big selection to mix and match from? 3) Do any pickups come pre-wired to the pots? That would make my life easy! Thanks.